Heater



Dec. 1, 1931. A. H. BATES 1,834,674

HEATER Filed Oct. 8, 1928 'Patented Dec. 1, 1931 UNITED sTATEs PATENT oFFlcE ALBERT H.BATES, -0]? ROCKFORD, ILLINOIS, ASSIGNO-R, BY MESNE ASSIGNMENTS, T0 LIBERTY FOUNDRIES COMPANY, OF ROCKFOBD, ILLINOIS, A CORPORATION l0F ILLINOIS HEATER Application filed October 8, 1928. Serial No. 311,032.

This invention relates to a hot wat/er heater especially adapted for use on motor cars, utilizing the hot'water from the motor and having a forced draft oflair therethrough sel5 cured by means of an electric fan.

Heaters of the kind referred to have been provided heretofore, but I am aware that they have embodied various objectionable features in their construction, have not been 10 as easy to install as might be desired, have not been compact enough to suit installation in some makes of cars, and were apt to develop leaks, squeak-s and rattles in service owing to their faulty mounting. It is, therefore, the general object of my invention to provide a heater specially constructed, assembled, and mounted, with a view to avoiding the objections just noted. i 'Y Briefly stated, the heater of my invention embodies the following features:

(l) The provision of a heater unit wherein the upper and lower tanks of the radiator core are firmly clamped between the front plate and the sheet metal shroud on the back in such a way that there is absolutely no danger of any of these parts getting loose and rattling or squeaking. This construction is furthermore of advantage in that the beads provided pn the shroud serve by engagement with flanges on the tanks of the radiator core to accurately locate the shroud with reference to the radiator, so that the fan will be centralized with respect to the shroud. This, of'course, greatly facilitates assembling and is a great advantage in the quantity production ofheaters.

(2) The provision of simple and improved means for supporting the electric fan motor which not onlyl tends to deaden sound and i vibration arising from the operation of the heater, but also permits a certain amount of adjustment of the motor toward or away from the radiator to change the volume of air forced through the radiator and incidentally eliminate any possible whirring sound apt to be produced where the fan is operated in too close proximity to the radiator core.

(3) The vprovision of reinforcing cleats f for use in mounting the heater on the dash,

serving to generally stien the support, particularly in the case of a sheet metal dash, and to minimize side sway of the heater relative to its mounting. This feature avoids any danger of the heater working loose at its mounting and incidentally minimizes the likelihood of leaks, squeaks and rattles, because of the fact that the heater is maintained absolutely rigid.

The foregoing and other features of the invention are fully illustrated in the accompanying drawings wherein- Figure 1 is a front view of the heater;

Fig. 2 is a central vertical longitudinal section therethrough showing the same mounted on the dash of an automobile;

Figs. 3, 4, 5 and 6 are sections taken on the lines 3-3, 4 4, 5-5 and 6-6 of Figs. 2 and 3 looking in the directions indicated by the arrows, and

Fig. 7 is a fragmentary side view of a heater of slightly modified construction.

Corresponding reference numerals are applied to similar parts throughout the views.

The heater shown in Figs. 1 to 6, generally speaking, comprises an air heating radiator 10 supported by hot water supply and return pipes 11 and 12 on the dash 13 of an automobile, under the cowl and well above the toe board 14 so as not to reduce foot room. A fan 15 driven by an electric motor 16 serves to insure a forced draft of clean fresh air throu h the radiator 10 from the back thereof where y to distribute the heat to all parts of the car.

The supply pipe 11 has connection through' a stop cock 17` with a pipe 18 tapped into the or whatever cooling fluid is used, is sup lied to the radiator 10 from the motor throug the pipe 11 and that it flows downwardly through the radiator and back to the motor through the return pipe 12. In warm.weather the heater may be entirely shut ofi by simply closing the cock 17 and, if desired, the fan 15 can be turned on in hot weather for the purposes of ventilation.

The radiator 10 may have a core of any suitable or preferred construction but is here-l in illustrated as having a turbotube core 2() consisting of two'or three rows of vertical flat tubes 21 connected at their upper and lower ends respectively to tanks 22 and 23 and provided with transverse radiating fins 24. The upper and lower tanks each have a hat inner wall 25 constituting a header plate having its edges swedged inwardly, as shown at 26, over flanges 27 bent outwardly on the edges of the front, back and side walls of a drawn piece 28 forming the rest of the tank. The

, parts 26 and 27 are pressed firmly together and form a continuous circumferential rim on each of the tanks, said rims being utilized in the assembling of the heater unit in a manner hereinafter to appear. The pressing of the parts together gives such a good bond that Vthe tanks are rendered water-tight by this operation alone. However, the joints are subsequently soldered to positively insure that the radiator will remain water-tight. The construction described, it will be seen, is such that there is no mechanical strain on the sol dered joints tending to open them. Cast brackets 29 and30 are riveted or otherwise suitably secured within the upper and lower tanks 22 and 23 respectively and have the supply and return pipes 11 and 12 threading therein for connection with said tanks. This makes a very firm and rigid construction and minimizes the danger of water leakage due to joints loosening. A plug 31 is provided for the upper tank 22 and likewise threads into the bracket 29. This plug is removed only when the system is being filled with water and serves to allow the air to escape.

A front plate 32, formed in one piece'from sheet metal and suitable nickel-plated for enhanced appearance, constitutes a marginal ornamental frame for the front 4of the radiator 10. It has a narrow, flat, inner rim 33 arranged to bear against the front ofthe radiator core 2O and an outer rim 34 rearwardly directed and fitting about the outside of the radiator over the upper and lower tanks 22 and 23, as best appears in Fig. 2. At each side `of the radiator the front plate has the edge of the rim 34 bent inwardly to forma flange 35 (see Fig. 4) for fastening the front plate to the radiator. The flange 35 has a number of flanged holes struck therein as shown at 36, these holes being tapped for reception of screws' 37. The screws" 37 are passed through holes in an outturned fiange 38 provided on the forward edges of the side wallsv 39 of a sheet metal shroud 40 enclosin the back and sides of the radiator core 2 b'etween the upper and lower tanks 22 and 23.

The shroud 40 is formed from a single piece of sheet metal by drawing and has a circular flange 4l formed on the back thereof defining an air intake opening in which the fan l5, previously referred to, is arranged to operate. The upper and lower edges of the side walls 39 of the shroud 40 have inturned lianges 42 to fit over the rims of the upper and lower tanks 22 and 23 of the radiator and in a similar manner the back wall has its upper and lower edgesl beaded, as appears at 43, to fit over the rimsof said upper and lower tanks. With this sort of construction, I have found that if the side walls 39 are made slightly too short for a true lit of the shroud and front plate on the radiator, the screws 37 fastening the flanges 35 and 38 together will stretch the front plate and shroud into snug contact with the radiator 4wherever these parts bear against the same. The front plate and shroud are thus made drum-tight and there is never the slightest danger of any part of the radiator unit itself becoming loose and giving rise to rattles and squeaks in the operation of the car. The edges of the flanges 38 are bent rearwardly as appears vat 44 to give the flanges added stiffness and prevent bending of the flanges at thescrews when the screws are tightened. If the flanges were allowed to bend at the screws, it would obviously prevent the tight drawing together of the front plate and shroud. It should-be evident from the foregoing that'the bearing of the shroud on the rims of the upper and lower tanks of the radiator serves to accurately locate the shroud with reference to the radiator, which of course, is important in assembling, especially in quantity production, inasmuch as it is necessary to have thefan as nearly central in the circle delined'by the flange 41 as possible or else there might be danger of interference of the flange 41 with the fan, especially if the workmen assembling the heater happen to be a little careless.

A switch 45 for controlling the motor 16 may be mounted in the hollow of the front plate 32, preferably between the front plate and the lower tank 23 as shown in Fig. 2,

rivets 46 or other suitable means being provided to fasten the casing of the switch to the front plate. The switch shown is ofthe sliding Contact type most commonly used in automobile lighting systems because of its suitability to low voltage conditions, and has its lever 47 projecting through a small slot 48 provided therefor in the front plate 32. One wire 49 (see Fig. 4) is led from the switch 45 to the ammeter or source of current, and another wire 50 is led from the switch to the motor 16, the other lead from the motor being grounded in the usual way. The space between the corners of the front plate and the shroud 40 permits easy extension of the wires 49 and 50 from the radiator for the connections just described. It will be evident that with the switch assembled as a part of the heater there is a saving in time in installation of the heater in the car, there being no necessity for mounting a separate switch on the instrument board, as would otherwise be the case. The heater unit is, in other Kwords, self-contained. At the same time it is ust as handy to operate the switch on the heater as it would be if the same were mount-y ed on the instrument board, and there is less danger of the driver confusing one switch for another. Furthermore, the. switch is practically entirely con/cealed and, thereforeydoes i not detract from the appearance of the heater.

' arranged to clamp the housing of the motor therebetween, and substantially semi-circular end portions 53 beingvarranged to `clamp the pipes 11 and 12 therebetween when the bolts 54 are tightened. Cushioning material, such as 'rubber or the like, is interposed between the motor housing and its clamping portions 52, as shown at 55, and similar cushioning material is provided at 56 around the pipes 11 and 12. This minimizes the transmission of'any `sound or vibration from the motor to the pipes and thence to the radiator or dash and the heater unit is, as a result, rendered smooth and quiet inv operation. The motor'is obviously held rigidly by means of the brackets 5l and, since it is a simple matter to get the pipes 11 and 12 properly spaced, there is no difficulty about centering the fan 15 properly with respect to the opening defined by the circular flange 41. Aside from that advantage, this method of assembling the motor on theheater gives the further advantage that the motor can be adjusted toward or away from the radiator core to get the fan positioned preciselyas desired with respect to the back of the radiator core. Thus, supposing the volume of air forced through the radiator is too high for normal conditions; in such cases the backing away of the motor a certain amount willA usually be found to cut down the volume of air appreciably so that the desired operating characteristics can be obtained. Furthermore, there is sometimes a noticeable whirring noise produced if thefan is operated in too close proximity with the radiator core and that can also be remedied by. backing the motor away from the radiator slightly to obtain the proper spaced relation between the fan and the radiator where the operation of the fan will be practically noiseless.

Referring for a moment to F ig. 7 showing a modified construction, substantially all of the advantages of the motor mounting just described may be obtained by the provision of 'a bracket 51 mounted directly on the shroud 40 and serving to support the motor 16. This l serving to give the desired strength and rigidity. Elongated slots-60, formed in the shelf 58 receiving the bolts 62, permit the fastening of the motor to the bracket while allowing for a certain amount of fore and aft adjustment. Here again, cushioning material is suitably providedfto minimize the transmission of sound and vibration from the motor to the bracket and tend toward quiet operation. Obviously, lthis construction aHords substantially all of the advantages of the construction just described, and offers the additional advantages of lower cost, ease in assembling and less weight. If desired, the bracket 51 may be provided with air holes 64 to minimize the obstruction to the flow of air into the radiator` core. While the bracket 5l as shown here, is mounted on the lower part of the shroud 40 with the motor 16 resting thereon, it should be apparent that this bracket might be fastened on either side or on the top of the shroud with the motor fastened thereto in the same way.

The mounting of the heater unit on the dash 13 by means of the pipes 11 and 12, which are usually disposed so that one is directly above the other, makes the heater rigid enough in a vertical plane so that there is no likelihood of its having any up and down sway, but there is obviously very little-support for the unit against sideI sway unless some reinforcement is provided to guard against it. I, thercfore,prefer to provide a transversely disposed cleat 65 in connection with the fastening of each of the pipes 11 and- 12 to the dash 13. The cleats are suitably formed from channel stock or sheet 'metal bent to channel form to afford the desired stiffness with very little weight involved. Each cleat has at least three holes 66 provided therein-between the flanges 67, one hole being provided at the middle of the cleat and the other two holes being preferably provided in different spaced relation to the ends of the cleat. If there is nothing to interfere, the cleat is preferably used with the pipe passing through the middle hole, but if something adjacent the point where the pipe is passed through the dash happens ,to interfere with the use of the cleat in that way, the pipe can be passed through either end hole, if not enough space is available to allow use ofthe 4hole farther removed lfrom the end of the cleat, then the hole nearer the end of the cleat is used. In any event the cleat is arfurnishes the most lateral support, the cleat^ can be placed at whatever angle will suit the conditions, the aim being, of course, to place the cleats so that they will furnish the maximum lateral support. As shown in Fig. 2, the

nuts 68 on the inside of the dash threading on the pipes lland 12, are arranged to fit between the flanges 67 of the cleats. The nuts 69 threading on the pipes on the outside of the dash are, therefore, the ones to be tightened to remove any play in the mounting. The use of the cleats as dash reinforcements is found to be of particular advantage in the mounting of the heater units on sheet metal dashes, in which case there is even greater need for adequate lateral support for the heaters than where they are mounted on wooden dashes.

It is believed theforegoing description con- Veys a clear understanding of my invention and of its various objects and advantages. While reference has been made in the foregoing description to various specific detailsl of construction, it should be understood that changes might be made without seriously departing from the spirit and scope of the invention. For that reason, the appended claims have been drawn with a View to covering all legitimate modifications and adaptations.

I claim:

1. A radiator unit comprisingv a radiator core, having'upper and lower tanks or headers communicating therewith, a front frame plate for said radiator covering the fronts of the tanks and defining the margins of thel core, said plate projecting beyond the opposite sides of the core, a shroud fitting closely about and enclosing the back and sides of the core between the tanks,7 but open at the back lto permit 'the passageof air through the core,

. and means for fastening the shroud to the projecting portions of the front frame plate at opposite sides of the core.

2. A radiator unit as set wherein the tanks have outwardly projecting rims thereon, and wherein the shroud has the edges conformed to fit said rims whereby to make good connections and also insure accurate positioning of the parts, the edges of said shroud being arranged to be clamped onto said rims in the fastening of the shroud to the front frame plate.

3. A radiator unit as set forth in claim 1 wherein the frontframe plate has an inner rim portion for abutment with the front of `the radiator to position the plate, the sail rim being arranged to be clamped onto the radiator front in the fastening onto the shroud. f

of said platev plate covering the fronts of the tanks and delining the margins of the core, having an outer rim fittin over the radiator and serving to position t e plate with reference thereto, a shroud enclosing the back andsides of the core between the tanks, but open at the back to permit the passage of air through the core, said upper and lower tanks having outwardly projecting rims on the back and sides, and said shroud having the upper and lower edges thereof conformed to fit lon said rims whereby to position the shroud properly with reference to the radiator, the sides of said shroud having flanges on the forward edges thereof, and the front frame plate having 6. A radiator unit as set forth in claim 5 wherein the means serving to fasten the said flanges together is arranged when'tightened to draw the flanges toward one another whereby to cause the frame plate-and the shroud to clamp onto the radiator.

7. A radiator unit asset forth in claim 5 wherein the means serving to fasten vthe said flanges together is `arranged when'tightened to draw the flanges towardone another whereby to cause the frame plate and the shroud to clamp onto the radiator, the outer edges of the flanges on the sides ofthe shroud being bent rearwardly to reinforce and stiffen Qthe samt-against buckling or bending under the tig tening of the fastening means.

8. radiator unit comprising a radiator core having upper and lower tanks or headers forth in claim 1 communicating therewith, the said tanks having outwardly projecting rims defining the edges of the header plates, a front frame plate covering the fronts of said tanks having aninner rim fitting over the rims on the fronts of said tanks and defining the margins of the core, and an outer rim extending rearwardly and fitting over the outside of the tanks, the latter rim havinguinturned anges at either side of the core, a shroud enclosing the back and sides of the core between the upper and lower. tanks, said shroud having'the upper and lower edges thereof conformed to fit onto the rim of the tanks at the back and sides thereof, and having the back open to permit the passage of air through the core,

the. forward edges of the sides of said shroud being provided with outturned iianges for cooperation with the inturned anges of the front frame plate, said anges being normally spaced with reference to one another before they are fastened together, and means for fastening said flanges together whereby the front frame plate and shroud are both.

about its upper `said tanks, the back of said shroud having an opening therein adapted to permit the passage ofair through said core, said shroud having the upper and lower edges thereof conformed to iit onto said rims whereby accurately to position said shroud with refer- (ence to the radiator, means for fastening the shroud to the radiator, said radiator being adapted to have communication with a source of supply of heating iuid, a motor having a fan arranged to be operated to induce a draft of air through the radiator core, and means for 'supporting the motor so that the fan lis disposed substantially centrally in the opening in the back of said shroud. j n

10. A radiator heater unit comprising, in combination, a radiator comprising a core and upper and lower tanks or headers communicating therewith, said tanks having outwardly projecting rims thereon, a shroud enclosing the back and sides of the core'between said tanks, the back of said shroud having an opening therein adapted to .permit the passage of air through said core, said shroud :having the u per and loweredges thereof conformed to t onto said rims whereby accurately to position said shroud with vreference to the radiator, means for fastening the shroud to the radiator, pipes projecting rearwardly from the upper and lower tanks having communication with a source of supply of heating fluid and serving to support said radiator, as, for' example, on the dash of an automobile, a motor having a fan I combination, a radiator comprising a core andv operating in the back of said radiator, and

' means for mounting said motor on one of said pipes so that the fan is disposed substantiallycentrally in the opening in said shroud. 11.` A radiator heater unit comprising, in

upper and lower tanks or headers communicating therewith, said tanks having outwardly projecting rims thereon, a shroud enclosing the back and sides of the vcore between said tanks, the back (if said shroud having a substantially circular opening therein adapted tov permitythe passage. of air 'through said core and having the upperK and lower edges j thereof conformed to fit onto said rims whereby accurately to position said shroud with Areference to the radiator, means for fastening the shroud to the radiator, pipes projecting rearwardly from the upper and lower tanks and having communication with a source of supply of heating fluid, said pipes being disposed on a substantially diametrical line with reference to the circular opening in the back of said shroud, a motor having a fan operating in the opening in the back of said shroud, andvmeans extending between said pipes substantially diametrically with reference to said circular opening and serving to support said\ motor with the fan thereof substantially centrally disposed in said opening.

1-2. A radiator heater unit of the character described, comprising aradiator having the core thereof communicating with upper and lower tanks or headers, supplyiI and return pipes connected with the upper and lower tanks and extending rearwardly therefrom for communication with a source of supply of heating fluid, means for'supporting said pipes, as, for example, on the dash of an automobile, an electric motor having a fan on the armature shaft thereof operating in back of the radiator core, and a bracket for supporting the motor with its fan in the position described, comprising two parts ems bracing the housing of the motor interme-l diate their ends and embracing the supply and return pipes at their opposite ends, and means for fastening the two parts' together.

13. A heater unit as set forth in claim l2 including sound and vibration deadening material interposed between the ends 'of the bracket parts and the pipes, the bracket parts being arranged to clamp onto said materi-al whereby to avoid metal to metal contact between the bracket and the pipes and prevent the transmission of vibration and sound incident to the operation of the motor to the pipes and thence to the radiator or other parts connected therewith.

14. A radiator' heater unit comprising a radiator having the core thereof communicating with upper and -lower tanks orheaders, upper and lower sipply and returnlpipes connected to said tanks and extending rearwardly therefrom for communication with a source of lsupply of heating fluid',means furnishing air to be heated to the radiator core, means for fastening the upper and lower supply land return pipes to a heater v support, such asthe dash of an`auto1nobile,

the unit being held againstup and down movement by reason of the mounting on the upper-and lower-supply and return pipes,

,and means providedlin connection with the pipes for 'preventing-lateral swinging movement of the unit -witlrg'said pipes.

15. A lieatera'initgas set forth in claim 13,

wherein the last mentioned means comprises reinforcing cleats arranged to be disposed in 1 horizontal position, or nearly so, and arranged to be caused to bear againstthe heater 5 support in the fastening of the supply and return pipes thereto.

16. A radiator unit comprising a radiator core, having upper and lower tanks or head- 'ers communicating therewith, a shroud litting closely about and enclosing the back and Jsides of the core between the tanks and having the top and bottom edges thereof engaging the back and sides of the tanks for support thereon, said shroud having an openl5 'of air through the core, a front frame plate for said radiator covering the fronts of the tanks and defining the margins of the core 4 and projecting beyond the opposite sides of said core, the shroud having the front ends bent outwardly for attachment to the projecting portions of the front frame plate at opposite sides of the core, and means for fastening the last mentioned portions of the shroud and frame platektogether.

17. A radiator unit comprising a radiator core, having upper and lower tanks or headers communicating therewith, a shroud fitting closely about and enclosing the back and sides of the core between the tanks and having the top and bottom edges thereof engaging the back and sides of the tanks forsupport thereon, said shroud having an opening'in the back thereof to permit the passage of air through the core, a front frame plate for said radiator covering the fronts of the tanks and deining the margins of the core and projecting beyond the opposite sides of said core, the projecting portions of said -frame late 40 being bent rearwardly and then inward to provide inturned flan es for pur oses o attachment to the shrou the shrou having the front ends thereof bent outwardl to provide `flanges for attachment .to the rame plate,

and means for fastening the .outturned flanges.

of the shroud to the inturned flanges of the frame late. I

t 18. radiator unit comprising a radiator core, having upper and lower tanks or headers communicating therewith, a shroud itting closely about and enclosin the back and sides of the core between the ta s and having the top and bottom ed es thereof engaging the-back and sides of't e tanks for support thereon, said shroud having any openin in theback thereof to ermit the passage o .air

through the core, a ront frame plate for said y radiator having an outer rim projecting rearwardly for engagement with the top and bot- 30 tom of the upperand lower tanks 'for sup-v port of said frame plate thereon, said framey v plate covering the fronts of the tanks and defining the margins of the core and projecting be ond the opposite sides of said core, the

5 shrou having the front ends bent outwardly ing in the back thereof to permit the passage l for attachment to'the projecting portions of the front frame plate at opposite sides of the core, and means for fastening the last tioned portions of the shroud and fram plate together. e ."1

19. A structure as set forth in claim 16 wherein the front frame plate has an inner rim for engagement with the front of the radiator and wherein the means for fastening the shroud to the frame plateV is arranged when tightened to draw the eni said parts toward eachother wherebyto to permit the passage of air through said core,

said shroud having the upper and lower edges thereof engaging the'back and sides of-the upper and ower tanks for support of the shroudvr thereon and so as to position said shroud accurately with reference to the.ra-.

diator, means for fastening the shroud to 'the radiator,` a motor having a fan arranged to be operated to induce a draft vof air through the radiator core, pipes projecting rearwardly from the upper andlower tanksm diametrically opposed relation relative to the circular opening in the back of said shroud and adapted to have communication with a source of supply of heating fluid and also adapted to serve to support said radiator, and means for mounting the motor on one of said pipes so that the fan is disposed substantially centrally in the opening in said shroud.

21. A radiator heater unit comprising in combination a" radiator comprising a core and upper` and lower,l tanks `or headers communitating therewith, a shroud fitting closely about and enclosing the back and sides of the core between the tanks, said shroud vhaving a circular o ning in the back 'thereofv adapted to permit the passage of air through said core, said shroud having the u per and lower edges thereof en aging the ack and sides of the upper and ower tanks for support of the" shroud thereon and so as to position said shroud accurately with reference to the radiator, means for fastening the shroud to the radiator, a motor having a fan arranged to be operated to induce a draft of air through the radiator core, pipes projecting rearwardly from the upper and lower tanks in diametrically opposed relation relative to lthe circular opening in the back of said shroud and adapted to have -commuhication vwith asource of supply of heating fluid and also adapted 'to serve to support said radiator, and a bracket mounted on said pipes and extending substantially diametrically with reference to the opening in the shroud and serving to support the motor with the fan thereof substantially centrally disposed with reference to said opening.

` heater unit in one plane, andmeans provided in connection with the pipes for preventing side sway of the unit with une pipes in a transverse plane.

23.- A heater unit as set forth in claim 22 wherein the last mentioned means comprises reinforcing cleats disposed in a position transverse with reference to the plane of the two pipes and arranged to be caused to bearpagainst the heater support on opposite sides of the pipes in the fastening of said pipes to said support.

24. In a heater unit of the character described, the combination of a radiator comprising a core and upper and lower tanks or headers communicating therewith, the said radiator being adapted to have connection with a source of heating fluid and adapted to have an electric fan force air to be heated through saidcore, a front frame plate for said radiator covering the fronts of said tanks and defining margins of the core, said plate being constructed to leave a space between the inside thereof and the front of one of said tanks, and a switch for con- `trolling`the operation of the electric motor for the heater mounted lin saidspace within said front frame plate and concealed thereby and having a manually operable part thereofprojecting through a hole provided therefor inthe 'frame plate for convenient .operation from in front of the heater.

25. A radiator heater unit comprising a radiator, a casing for said radiator open in front and having an opening in the back thereof permitting the passage of air through the core of said radiator, said cas- "ing having one or more portions thereof formed to fit certain portions'of the radiator so as-to llocate the` back opening in a predetermined position, supply and return pipes ,connected with the opposite ends vof said radiator, said pipes beinglocated in a predetermined relation to one another so as to be at diametrically opposite sides of the back openinfr, said pipes extending rearwardly from the radiator for communication with a source of supply of heating iuid, a motor operating a fan in back of the radiator, and a supporting bracket for said motor mounted on said pipes and extending substantially diametrically with respect to the back opening whereby to hold the fan substantially centrally with respect thereto.

l26. A radiator heater unit comprising a radiator, a casing for said radiator open in front and having an opening in the back thereof for the passage of air through the core of said radiator, supply and return pipes connected with the opposite ends of the radiator at diametrically opposite sides of the back opening and extending rearwardly from the radiator for communication with a source of supply of heating fluid, a motor operating a fan in back of the radiator, and n `thereon to adjust the fan in the snroud opening to different spaced relation to the back of the radiator core substantiallyv as andpfor A the purposes described.

27. A radiator heater unit comprising a radiator, a casing for said radiator open'in front and having an opening in the back thereof for the passage of air through the core of said radiator, supply and return pipes connected with the opposite ends of the radiator at diametrically opposite sides of the back opening and extending rearwardly from the radiator for communication with a source of supply of heating fluid, a motor operating a fan in back of the radiator, and a supporting bracket for said motor mounted on said pipes and extending substantially diametrically with respect to the back opening whereby to hold the fan substantially centrally with respect thereto, said supportingbracket being arranged to clamp onto said pipes,and cushioning material interposed between the pipes and the bracket so that there is no metal to metal Contact and sound and vibration incident to the operation of the motor cannot'be transmitted to the pipes and thence to the radiator and parts associated therewith.

28. Aradiator heater unit comprising in combination a radiator comprising a core and upper and lower tanks or headers c om- `upper and lower edges thereof engaging the upper and lowerl tanks for support of the shroud thereon andso as to position said shroud accurately with reference to the radiator, means lfor fastening the shroud to the radiator, a motor having a fan arranged to Vbe operated to inducev a draft of air through the radiator core, and means for s supporting the motor so that the fan is disposed substantially centrally in the opening in the back of said shroud.

29. A heater unit as set\forth in claim 28 wherein the last mentioned means sup- 10 ports the motor so that the same may be shifted to adjust the fan in the shroud opening to different spaced relation to the back of the radiator coref, n 30. In a'heater having intake and discharge conduits, a motor, a mounting for the motor including oppositely disposed clamping members having their end portions curved to substantially fit the peripheries of said conduits, the intermediate portions of said clamping members also being curved and shaped to substantially t the periphery of the motor housing, and bolts in said clamping members whereby they may be actuated to clampingly engage saidA conduits and said.

motor to irmly secure the motor in position upon the heater, said clamping members per- /mitting adjustment of themotor with respect to the heater body. 1

31. In a heater having intake and discharge conduits, a motor, a mounting' for the motor including oppositely disposed clamping lmembers of yieldable matealhaving their end portions curved to substantially fit the peripheries of said conduits, and the interf mediate portions of said clamping members being curved to substantially fit the motor housing, and the cur-ved portions of each clamping member beingfconnectedby elongated aligned strap portions having apertures therein adapted to receive suitable clamping bolts whereby said clamping members may be operated to secure the motor in position upon the heater between said con- .duits.

32. In a heater, the combination of a heating unit, an electric motor having a fan .on

nature.

ALBERT H. BATES.

the armature shaft thereof operating behind -the `heating unit, tubular supporting members extending from the opposite ends of the heating unit rearwardly adapted to support the heaterg and a mounting for the motor including opposed clamping members having intermediate portions embracing the hous-l ing of the motor and end portions embracl I ing the aforesaid supporting members,.and

' means for fastening the clamping members together.

y 33. In a heater, the combination of a .heating unit, lan electric motor having la fan o'n the armature shaftthereof operating behind the heating unit, pipes extending from the opposite ends of the heating unit'frearwardl'y for'the delivery of heating medium to and 'from the heating unit, and a mounting for 265 themotor including opposed clamping mem CERTIFICATE oE CORRECTION.

Peteur No. 1,834,614. Granted December 1, 1931, te

ALBERT H. BATES.

IIt is hereby -certfied that error appears in the printed specification of the above numbered patent requiring Correction as follows: Page 1, after line 48, insert the following paragraph: n

(3) The provision of a( switch for'eontrolling the electric fan motor which is mounted on the inside of the front plate with its lever extending througha slot therein for operation from the frontof the heater. This makes an attractive appearing assembly and renders the heater unit self-contained so that the job of mounting a switch on the instrument board of the car is dispensed with.

same page, line 49, for the numeral (3)" read (4); and that the said Letters Patent should be read with these corrections therein that the same may conform to the record of the case in the Patent Office.

Signed andsealed this 16th day ofFebruary, A. D. 1932.

M. J. Moore,

(Seal) n Acting Commissioner of Patents. 

